This Stag Arms Stag-15 is a semi-auto rifle which fires the 5.56mm round. It has a black finish and a 16" M4 barrel. This brand new rifle is a left-handed model. It ha a flat-top receiver with a flip-up rear sight, a 6-position collapsible stock, a side sling mount, and a bayonet lug. It comes with one 30-round magazine.